Environment · head-to-head
BreezoMeter Pollen vs Website Carbon
BreezoMeter's Pollen API was folded into Google Maps Platform after Google's 2023 BreezoMeter acquisition; the old docs.breezometer.com host now redirects straight to Google's own Pollen product page. The live gateway, pollen.googleapis.com, still serves the same daily pollen forecast and heatmap-tile data for a location, just under a Google Cloud API key and Maps Platform billing.
Website Carbon estimates the CO2 emitted by loading a web page, based on page weight and whether the host uses green hosting, returning a digital carbon rating alongside the raw gCO2e figure. As of 14 July 2025 the provider retired public access to its convenience /site endpoint (which fetched a URL for you); the /data endpoint, which takes bytes and a green-hosting flag directly, remains free and open with no key.
| BreezoMeter Pollen | Website Carbon | |
|---|---|---|
| Authentication | API Key | None |
| Pricing | freemium | free |
| Formats | JSON, PNG | JSON |
| CORS | yes | no |
| HTTPS | Yes | Yes |
Website Carbon needs no API key, while BreezoMeter Pollen requires API Key — pick Website Carbon to start without signup.